[i=s]This post was last edited by michael_llh on 2016-8-9 13:51[/i] [align=left][font=新宋体][size=4] The development environment uses Keil for ARM. As you know, Keil also has a version for 51. So here w...
The expanded IO port is used to drive the matrix keyboard. GPG1, 3, 5, 7 are connected to the column lines as interrupts, EXTINT9, 11, 13, 15; GPE11, 13 GPB8, 6 are connected to the row lines. The rel...
PIC16F1825 runs well with 16M, 12M, 8M, and 4M, but the program does not run when it is changed to 20M crystal. What's the matter? Please help me. The manual says that the maximum HS type is 20M...
[i=s]This post was last edited by Madai on 2016-7-27 17:14[/i] A colleague said For inductors of the same size and inductance, the shielding effect of the former in the picture is better, but when I a...